<template>
  <Swiper :options="swiperOptions">
    <swiper-slide v-for="(banner, index) in skuImageList" :key="index">
      <img
        :src="banner.imgUrl"
        @click="change(index)"
        :class="{ active: number == index }"
        alt=""
      />
    </swiper-slide>
    <div class="swiper-button-prev" slot="button-prev" @click="minus"></div>
    <div class="swiper-button-next" slot="button-next" @click="add"></div>
  </Swiper>
</template>

<script>
import Swiper from "swiper";
import { mapGetters } from "vuex";
export default {
  name: "ImageList",
  data() {
    return {
      //轮播图的配置项
      swiperOptions: {
        //导航按钮可以点击切换图片
        navigation: {
          nextEl: ".swiper-button-next",
          prevEl: ".swiper-button-prev",
        },
        //设置同时展示几张图片
        slidesPerView: 3,
        slidesPerGroup: 1,
        //切换效果
        // effect:"coverflow"
      },
      number: 0,
    };
  },
  methods: {
    minus() {
      this, this.number--;
      this.$bus.$emit("changeindex", this.number);
    },
    add() {
      this.number++;
      this.$bus.$emit("changeindex", this.number);
    },
    change(index) {
      // console.log(index);
      this.number = index;
      this.$bus.$emit("changeindex", this.number);
    },
  },
  computed: {
    ...mapGetters(["skuImageList"]),
  },
};
</script>

<style lang="less" scoped>
.swiper-container {
  height: 56px;
  width: 412px;
  box-sizing: border-box;
  padding: 0 12px;

  .swiper-slide {
    width: 56px;
    height: 56px;

    img {
      width: 100%;
      height: 100%;
      border: 1px solid #ccc;
      padding: 2px;
      width: 50px;
      height: 50px;
      display: block;

      &.active {
        border: 2px solid #f60;
        padding: 1px;
      }

      // &:hover {
      //   border: 2px solid #f60;
      //   padding: 1px;
      // }
    }
  }

  .swiper-button-next {
    left: auto;
    right: 0;
  }

  .swiper-button-prev {
    left: 0;
    right: auto;
  }

  .swiper-button-next,
  .swiper-button-prev {
    box-sizing: border-box;
    width: 12px;
    height: 56px;
    background: rgb(235, 235, 235);
    border: 1px solid rgb(204, 204, 204);
    top: 0;
    margin-top: 0;
    &::after {
      font-size: 12px;
    }
  }
}
</style>